Towards full-colour tunability of inorganic electrochromic devices using ultracompact fabry-perot nanocavities.

ABSTRACT: Intercalation-based inorganic materials that change their colours upon ion insertion/extraction lay an important foundation for existing electrochromic technology. However, using only such inorganic electrochromic materials, it is very difficult to achieve the utmost goal of full-colour tunability for future electrochromic technology mainly due to the absence of structural flexibility. Herein, we demonstrate an ultracompact asymmetric Fabry-Perot (F-P) nanocavity-type electrochromic device formed by using partially reflective metal tungsten as the current collector and reflector layer simultaneously; this approach enables fairly close matching of the reflections at both interfaces of the WO₃ thin layer in device form, inducing a strong interference. Such an interference-enhanced

SUBMITTER: Wang Z 

PROVIDER: S-EPMC6965179 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature